5422556581 has 32 divisors (see below), whose sum is σ = 6134147712. Its totient is φ = 4760985600.

The previous prime is 5422556563. The next prime is 5422556647. The reversal of 5422556581 is 1856552245.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5422556581 is a prime.

It is a super-2 number, since 2×5422556581² = 58808239748292819122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5422556551) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3386181 + ... + 3387781.

It is an arithmetic number, because the mean of its divisors is an integer number (191692116).

Almost surely, 2^5422556581 is an apocalyptic number.

It is an amenable number.

5422556581 is a deficient number, since it is larger than the sum of its proper divisors (711591131).

5422556581 is a wasteful number, since it uses less digits than its factorization.

5422556581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813.

The product of its digits is 480000, while the sum is 43.

The square root of 5422556581 is about 73638.0104361871. The cubic root of 5422556581 is about 1756.8500584753.

The spelling of 5422556581 in words is "five billion, four hundred twenty-two million, five hundred fifty-six thousand, five hundred eighty-one".